Tube frame for axminster looms



June 3, 1930- 'Y G. P. FINDLAY I 1,760,942

TUBE FRAME .FOR AXMINSTER LOOKS Filed Feb. 2e. 1929- i. Illu entire length', although l do not wish to be limited to this feature, and the lower end of the latch is bent substantially horizontally as at 32 to extend through a slot 33 formed in the bracket by punching outwardly a lip 3e. rlhis lip is positioned to be engaged by the plunger V21 should the clutch move .downwardly while the tube frame is held imin the full line positionshown in Fig. l

fic

properly so as to be unable to move toward the fabric. The extreme left end of the latch is bent downwardly at 35 and extends into a notch 36 punched in the lower arm lll of the bracket. Said notch defines a shoulder 37 against which the bent end 35v normally is held. Y

Under normal opera-tions the parts Yare the'v substantially horizontal portion 32 o thelatch engaging the bracket at 38 at the upper end of the slot 33 and with the hool 3l normally held against the tongue l?. The latch in its normal form has the upright portion 39 thereof disposed at a` somewhat larger angle with respect'to the portion 32 than 1s shown inful'l lines in lligyl Aso that 4when thelatchl is inserted by having the lower end thereof passed into the slot 33 the lowerend of the spring latch will be placed under a strain which serves to hold the parts in the position shown in full-lines in Fig. l.

When the tube frame is to bc disconnected from the transporting chain the clutch will move inwardly from the full lineposition shown in, Fig. l to the left, the stud 2l) dur-` seen that the portion of the latch which extends into the tube frame is deflected by thevv clutch and the strain imposed upon the latch the tube frame. lt is understood of course I latch.

is distributed over a greater length of the latchf than is true with the usual form of t will be noted in this connection that practically the entire length of the horizontal section 32 lies normally above the lower arm lll so that said horizontal portion of the latch Y isc-apable of considerable downward deflection.

VVlien itis desired to remove the latch a tool such'afor instance as the screw driver designated at T in Flo'. 3 may be inserted in the slot 33and`moved so as to lift the leftend ofthe section 32 ofthe latch until the hookV 35 is entirely clear of the shoulder 3'?, after which the latch can be withdrawn from that under normal conditions the small hook j 35 by its engagement with the shoulder 3? is effective in retaining the latch in its proper 1 position. Y Y

From the foregoing it will be seen thatV l have Vprovided a simple form of latch the lower portion at leastof which is inherently resilient and so formed as to act by its ovv'n resilience to beheld in position on the tube frame bracket. While Y l have shown the shoulder 37 as being formed on one side of the Yslot 36 yet l do not wish to be limited to this particular form of shoulder. lt will also be seen that the parts are so'related that during the normal operation of the clutch that portion of the latch which extends within the tube frame isl capable of deflection so that the strains incident to thellexing of the latch are distributed over a greater length of the latter than usual. Furthermore, it will be noted that the slot 33 which is the opening through which the horizontal portion of the latch extends is formed by punching out the lip 34 to cooperate with the 1plunger 2l and is also sufliciently large to receive a tool by means of which the latch may be removed from the`bracket; y

` Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention `and l do not wish to be limited'tothe detailsherein disclosed, but what I claim is:

l. ln an Axminster tube frame having a hollowmetallic bar, a chain engaging bracket secured to the bar, a resilient chain engaging latch having a portion thereof to engage a part of the chain engaging bracket at the upper end thereof, said bracket-having an opening'therein, a shoulder on the bracket spaced from the opening, the chain engaging latch having a portion extending through the openinginto the hollow bar and having a part extending transversely of the bar and in engagement with the shoulder to prevent movement of the latch portion parallel to the bar out of the hollow bar, said latch portion projecting into the bar being held in engagement with the shoulder by the resilience of the latch.V l

2. ln an Axminster tube frame having a hollow metallic bar, a cha-in engagingl bracket secured to the bar and having an opening therein, a resilient chain engaging latch having a vertical portion to engage'the upper part ofthe bracket and having a lower portion bent to. extend through the opening of the bracket to project into the hollow bar, said portion having a partextending transversely Y orn the bar,and-means located within the bar and normally fixed with respect thereto to enga-ge the transversely extending part of the horizontal portion of the latch to prevent movement thereof out of the bar ina direction parallel to the bar, saidf means and lower latch portion being held in cooperative rela- 'tionship with each other bythe resilience of Vthe latch. Y

3. In an Axniinster tube frame having a hollow metallic bar, a chain engaging bracket secured to the bar and having an arm extend# ing into and secured to Vthebar, a shoulder on said bracket located within the'b'ar, the bracket having an opening spaced from the shoulder, and achain engaging resilient 'latch y member substantially Lshaped having a vertical portionv to engage the upper partl of the bracket and having a lower substantiallyv horizontal portion to extend throughthe opening in the bracket, the inner end of 1 the horizontal portion being formedV with a hook bent to extend transversely of the bar, to .engage the shoulder, said shoulder. preventing movement of the horizontal extension out of the bar in a direction parallel to thev bar, the hook and shoulder being held in cooperative relationship normally by thev resilience of the latch. y` f f 4. In a tube frame having a hollow me# tallic bar, a bracket secured'to fthe bar and s having a portion extending into and secured thereto, a shoulder on Vthe bracket locatedy within the bar, the bracket having an open,-

ing spaced from the lshoulder, and a resilienty latch engaging said bracket at threespaced points, a. hook formed on each'end of the latch, one of said points being the upper hook adjacent the upper end of the',V chain engag.

ing bracket, the second point being atone side of the slot, and the third point being thel 1 lower hook engaging the shoulder, said points acting to hold-thelatch normally in a stressed condition so that the resilience of said latch maintains holdingrelation be` tween the shoulderV and the latch, to prevent the latter from moving out of the bar in a direction parallel to the bar.

'5. In a tube frame havinga hollow, me-

. tallic bar, a bracket Asecured to the bar and` having an arm extending into said bar, a pair of surfaces on the bracket each transverse of the bar, said bracket having an open-1 ing between the surfaces, and a resilient latch member having va hook at each end thereof, the upper hook to engage and being normally movable with respect'to one surface of the chain engaging bracketand the lower hook being held normally by the resilience of the latch in holding relation witlirespect tothe other surface, the bracket engaging a part of the latch intermediate :the hooks and adjacent the slot to create normally a stress in` said latch, each hook engaging one of saidV surfaces of the bracket to prevent movement :of the latch out of the bar in a direction parallel to the bar. Y

6. In a tube frame having a hollow inetallic bar, a bracket member secured to the bar and having a substantially vertical chain i engaging portion and having a substantially to the bar, and a resilient latch element hav-v I tions, said ylatch extending through vthe Y ving substantially vertical and horizontal pory bracket member and having the vertical por- -f ktion-thereof Vengaging the-chain engagingr portion of the member and having the horizontal portion thereof engaging the arm said latch being normally held under a'strain by reason of its contact with thekmember, and means having engaging y surfaces transverse of the bar to define a holding engagement between thehorizontal portionsjof the member u l and latch to prevent movement of the klatter outy of the bar. V 7. In a tubeframe having arhollow ine- VAtallic bara substantially yLeshaped bracket member having aV horizontal arm extending into and secured to the bar and having averev y tical portion arranged to engage a'ch'ain, and av substantially L -shaped resilient latch ele! ment passing through the memberV and engaging the 'latter at three vspaced points, namely, the vertical portion of thelatch en-A gaging the upper end of the chainengaging part of the membenthe inner endof the horizontal portion of the element having'a part extending transversely of the'barand-have' l' ing holding engagement with the arm to previentV movement ofthe horizontal latch poition outofthe bar inra direction parallel -to l the bar, and the third point ofcontact beingl between the member and the element andlyl ing intermediate the other two points,said I latch being normally Vstressed so as to main.

tain the holding connection between the' liorii 4zontal portions of the member andfelement.

8. Ina tube frame having a hollow metallic bar, a bracketmember having a sub# stantially vvertical chain engaging portion anda horizontal arm extending into and secured to the bar, the vertical portionhaving engagement Vwith the shoulder, that portion Vof the member above theV slotengaging thej latchto normally stress saidlatch to preserve iiof the engagement between the shoulder and said latch, that portion of the latch adj acentA the slot having a hook extending transversely of the barl to engage the shoulder and 'being spaced from the horizontal arm to permit the insertion between saidarm and the latch of ya tool to disengage said latch from said shoulf der, by a motion transverse of the bar.

In testimony whereof I have hereunto arf-v l fixed my signature.

erronea, r. riNDLAY,

horizontal arm to extend into and bejsecured 

